4-(4-Bromophenoxy)benzene-1-sulfonyl chloride → HCID 67312686, compound

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Reaction Steps

Compound 4d was prepared similar to the procedure described for 4a using 4-(4-bromophenoxy)-benzenesulphonyl chloride (3d) (3.00 g, 8.63 mmol). Yield: 4.13 g, 7.42 mmol, 86% (light yellow solid). 1H NMR (DMSO-d6): δ 7.70 (d, J=8.2 Hz, 2H, ArH), 7.52 (d, J=8.8 Hz, 2H, ArH), 7.01 (d, 3J=8.8 Hz, 2H, ArH), 6.67 (d, 3J=8.9 Hz, 2H, ArH) 4.05 (s, 4H, 2×CH2CO2 tBu), 1.46 (s, 18H, 2×CO2tBu).

Provenance & Evidence